Draft-equalizer.



A. B. OLSEN. I

DRAFT EQUALIZER. APPLIUATION FILED 1113.12, 1910.

960,687. Patented June 7,1910.

5%5 I Elma/whoa Q: Wkm WM m w ALBERT B. OLSEN, 0F STEARNS, MONTANA.

DRAFT-EQUALIZ'ER.

Specification of Letters Patent.

Patented June '7, 1910.

Application filed March 22, 1910. Serial No. 550,925.

To all whom it may concern:

Be it known that I, ALBERT B. OLSEN, a citizen of the United States, residing at Stearns, in the county of Lewis and Clark and State of Montana, have invented certain new and useful Improvements in Draft- Equalizers; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertai-ns to make and use the same.

This invention relates to devices for equalizing the draft of several horses; and it consists in the novel construction and combination of the parts hereinafter fully described and claimed.

In the drawings, Figure 1 is a plan view of the draft equalizer. Fig. 2 is a rear view of the same.

A is a main draft beam provided near its ends with hooks b or other similar fastening devices for connecting it to the agricultural lmplement or vehicle to be drawn along.

C is an equalizing lever which is pivoted at one end by a pin 0 to one end portion of the main draft beam A at a little distance from its extreme end.

D is a supporting bracket secured to one end of the main draft beam A, and E is a similar supporting bracket secured to the other end of the draft beam.

F is a long lever the middle portion of which is pivoted by a pin f to the bracket D at the left hand end of the draft beam A. One end of the lever F is provided with a link f which engages with a hook g or other similar fastenin device on the middle part of a whifiietree H is a long link pivoted to the free end portion of the equalizing lever G by a pin it, and projecting across the end portion of the long lever F.

I is a whiffletree the middle portion of which is pivotally connected to the front end portion of the long link H by a hook i or other similar fastening device.

K is a link the rear end portion of which is pivoted by a pin 70 to the equalizing lever C at a point between its pivots and nearer to its pivot 0 than to its free end. The front end of the link K is pivoted by a pin is to an adjustable extension plate L which is secured to the long lever F and which forms one end portion of the said lever.

M is a'short lever the middle part of which is pivoted by a pin m to the front end of the bracket E at the right hand end of the draft beam A.

N is a link which is pivoted at one end to the equalizing lever C by the pin is, hereinbefore referred to. The front end of the link N is pivoted to the inner end portion of the short lever M by a pin n. The outer end portion of thelever M is provided with a link 0 which engages with a hook 0' or other similar fastening device on the middle part of a whiflletree O.

The three horses are harnessed to the whiffletrees G, I, and O, in the usual manner, and the links and levers are so proportioned that the three horses can draw the load with the greatest facility.

The draft equalizer can be made the re verse of that shown and described, that is to say with the equalizing lever projecting in the reverse direction instead of the direction shown, and with the remaining portions of the device arranged accordingly.

What I claim is:

1. In a draft equalizer, the combination, with a main draft beam, of an equalizing lever having one end pivoted to the draft beam, brackets secured to the ends of the draft beam, a long lever having its middle part pivoted to one of the said brackets, a short lever having its middle part pivoted to the other bracket, two links pivoted to the equalizing lever at one end and having their other ends pivoted to the adjacent end portions of the said long lever and short lever respectively, a long link pivoted to the free end portion of the said equalizing lever, and three whiflletrees having their middle portions pivoted respectively to the front end of the said long link and to the outer end portions of the long lever and the short lever.

2. In a draft equalizer, the combination, with a main draft beam, of an equalizing lever having one end pivoted to the draft beam, brackets secured to the ends of the draft beam, a long lever having its middle part pivoted to one of the said brackets, an adjustable extension-piece secured to the inner end portion of the said long lever, a short lever having its middle portion pivoted to the other bracket, two links pivoted to the said equalizing lever at one end and having their other ends pivoted to the adjacent end portions of the said extensionieee and short lever respectively, a long In testimony whereof I have affixed my ink pivoted to the free end portion of the signature in the presence of two Witnesses, said equalizing lever, and three Whifiletrees i ALBERT B OLSEN having their middle portions pivoted re- 5 spectively to the front end of the said long Vitnesses:

link and t0 the outer end portions of the. G120. N. WHITE, long lever and the short lever. M. O. COVINGTON. 

